hg: mobile/dev: 8165946: buildjdk logic is incomplete when separate sysroots needed

[gary.adams at oracle.com]

Changeset: 22cd73e06b67
Author:    gadams
Date:      2016-09-14 13:12 -0400
URL:       http://hg.openjdk.java.net/mobile/dev/rev/22cd73e06b67

8165946: buildjdk logic is incomplete when separate sysroots needed
Reviewed-by: bobv, erikj

! common/autoconf/basics.m4
! common/autoconf/generated-configure.sh
! common/autoconf/toolchain.m4